CHAPTER 6 DMA FUNCTIONS (DMA CONTROLLER)
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User’s Manual U14359EJ4V0UM
6.4.2 DMAC bus cycle state transition
Except for the block transfer mode, each time the processing for a DMA transfer is completed, the bus mastership
is released.
Figure 6-1. DMAC Bus Cycle State Transition
(a) 2-cycle transfer
(b) Flyby transfer
TI
T0
T1R
T1RI
T2R
T1W
T2W
TE
TI
T2RI
T1WI
TI
T0
T1FH
T2FH
TE
TI
T1FHI